Set Page Numbers in PDF - VB.NET
PDF SDK sample in VB.NET demonstrating ‘Set Page Numbers in PDF’
Program.vb
Imports Bytescout.PDF
''' <summary>
''' This example demonstrates how to add page numbers (labels) visible in the page thumbnails panel of PDF viewer.
''' </summary>
Class Program
Shared Sub Main()
' Create new document
Dim pdfDocument = New Document()
pdfDocument.RegistrationName = "demo"
pdfDocument.RegistrationKey = "demo"
' If you wish to load an existing document uncomment the line below And comment the Add page section instead
' pdfDocument.Load(".\existing_document.pdf")
' Add twenty pages
For i As Integer = 0 To 19
pdfDocument.Pages.Add(New Page(PaperFormat.A4))
Next
' First five pages will have roman numbers I, II, III, ...
Dim pageLabel = New PageLabel(0, PageNumberingStyle.UppercaseRoman)
pdfDocument.PageLabels.Add(pageLabel)
' Next five pages will have arabic numbers 6, 7, 8, ...
pageLabel.Style = PageNumberingStyle.DecimalArabic
pageLabel.StartPortion = 6
pageLabel.FirstPageIndex = 5
pdfDocument.PageLabels.Add(pageLabel)
' Next five pages will have complex page numbers with prefix A-11, A-12, A-13, ...
pageLabel.Style = PageNumberingStyle.DecimalArabic
pageLabel.Prefix = "A-"
pageLabel.StartPortion = 11
pageLabel.FirstPageIndex = 10
pdfDocument.PageLabels.Add(pageLabel)
' Next five pages will use letters as page numbers P, Q, R, ...
pageLabel.Prefix = ""
pageLabel.Style = PageNumberingStyle.UppercaseLetters
pageLabel.StartPortion = 16
pageLabel.FirstPageIndex = 15
pdfDocument.PageLabels.Add(pageLabel)
' Force PDF viewer to show page thumbnails panel on start up
pdfDocument.PageMode = PageMode.Thumbnail
' Save document to file
pdfDocument.Save("result.pdf")
' Cleanup
pdfDocument.Dispose()
' Open document in default PDF viewer app
Process.Start("result.pdf")
End Sub
End Class
Resources.Designer.vb
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